Amentum

Mechanical HVAC Engineer 3

Amentum$120K — $140K *
Real Estate & Construction
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelors degree in Engineering or related field
  • 5 years of applicable experience
  • Strong communication and analytical skills
  • Proficient with computer systems and integrated software applications
  • Willingness to travel as required
  • Ability to obtain and maintain a Security Clearance
  • US Citizen only; dual citizens are not eligible

Responsibilities

  • Perform design development and analysis tasks with minimal supervision
  • Lead less complex tasks and oversee a portion of design or analysis
  • Generate comprehensive design specifications for complex projects
  • Collaborate with engineering, logistics, and program management teams
  • Establish project tracking databases and filing systems
  • Develop and produce technical documentation and specifications
  • Interface with customers throughout the design and testing phases

Benefits

  • Health, dental, and vision insurance
  • Paid time off and holidays
  • 401(k) retirement benefits with matching
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance
Full Job Description
Purpose/Scope Description:

Perform a variety of engineering assignments in planning and overseeing research, development, design, manufacture, test, installation, operation, and maintenance of diverse electronic/mechanical equipment and systems and generally as a member of a design, analysis or review team on more complex assignments or as a lead on less complex assignments.

Essential Responsibilities:

1) Perform a range of design development, analysis or review tasks under minimal supervision.

2) Act as a lead on less complex tasks and responsible for a portion of a design or section of an analysis or design review.

3) Generate complete design specifications of more complex projects.

4) Coordinate and work closely with other engineering, logistics, finance, and program management disciplines to define system specifications and requirements.

5) Establish and maintain a filing system or databases as needed for tracking project status.

6) Develop, maintain and produce technical documentation and system/subsystem specifications.

7) Direct interface and liaison with customers at all levels from quotation to final design and test activities, design reviews and technical working group meetings to comply with requirements and specifications.

8) Conduct site visits, experimental investigations and analyze engineering problems, propose solutions and alternatives, and provide recommendations.

9) Verify and comply with engineering documentation standards and test procedures.

10) Support development of technical proposal and provide comments on the technical content and level of effort of the proposed scope of work.

Required Qualifications:
  • Bachelors degree in Engineering, or related scientific field.
  • 5 years of job-related experience or equivalent.
  • Good communications and analytical skills
  • Working knowledge of computer systems and integrated software application programs.
  • Position may require travel.
  • Position may require the ability to pass and maintain a Security Clearance.
  • US Citizen only. Dual Citizens are not allowed.


Preferred Qualifications:
  • Experience in HVAC systems design and associated engineering calculations (e.g. Air-handling systems, HEPA filtered exhaust systems, duct systems, heating and chilled water hydronic piping systems, steam and condensate piping systems, and HVAC system controls).
  • Experience sizing and selecting HVAC equipment (e.g. air-handling units, fans/blowers, pumps, cooling towers, chillers, boilers, coils, HEPA filtration systems, dampers, valves, and controls).
  • Proficient in editing and writing HVAC construction and equipment specifications.
  • Experience using HVAC computer load and design programs such as Trane Trace software.
  • Working knowledge of ASHRAE standards.
  • Working knowledge of DOE codes.
  • Familiar with SMACNA standards.
  • Familiar with NFPA standards.
  • Familiar with AutoCAD is preferred
  • Revit BIM experience is preferred.


Compensation & Benefits:

HIRING SALARY RANGE: $120K - $140K Annually (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant internal equity, and alignment with market data.)

Compensation Details:
$120,000 - $140,000

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:
  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance


Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:
07/24/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

About Amentum

Amentum is a leading provider of engineering and technical services to the U.S. government and commercial customers worldwide. The company offers a wide range of services, including environmental remediation, facilities management, and logistics and supply chain management, among others. Amentum has a global presence, with operations in over 20 countries, and serves a diverse range of customers, including the Department of Defense, the Department of Energy, and the Department of State. The company is committed to providing high-quality services and has a strong reputation for technical expertise, innovation, and customer satisfaction.
Learn more about Amentum
Size
20,000 employees
Industry
Net Income
$200 million
Founded
2014
Revenue
$5 billion

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